Common mistakes in cases involving a lack of jurisdiction include failing to recognize jurisdictional issues early, not properly researching or understanding the specific jurisdictional requirements of the case, and proceeding without filing the appropriate motion to dismiss or transfer the case. Another mistake is not notifying all parties involved about the jurisdictional challenge, which can lead to misunderstandings and further delays. Additionally, some legal professionals may attempt to proceed in the wrong court without challenging the lack of jurisdiction, causing unnecessary delays and wasted resources. These mistakes can significantly affect the case’s progress by causing delays, potential dismissal, and additional costs, while also wasting time that could be spent pursuing the case in the correct forum. To prevent these mistakes, it is crucial to carefully review the case at the outset to identify any jurisdictional issues, consult relevant legal rules or precedents, and file a motion to dismiss or request a transfer to the proper court early in the proceedings. Open communication with all parties and seeking legal advice from a jurisdictional expert can further ensure that the case proceeds in the appropriate legal venue without unnecessary setbacks.